Submission #930718

#	Time	Username	Problem	Language	Result	Execution time	Memory
930718		ByeWorld	Strange Device (APIO19_strange_device)	C++14	5 / 100	888 ms	3984 KiB

strange_device

#include <bits/stdc++.h>
#define fi first
#define se second
#define pb push_back
#define int long long
#define lf (id<<1)
#define rg ((id<<1)|1)
#define md ((l+r)>>1)
using namespace std;
typedef pair<int,int> pii;
typedef pair<pii,int> ipii;
const int INF = 1e9+10;
const int MAXN = 1e6+10;

int n, a, b;
set <pii> s;
int ans;

signed main() {
	cin >> n >> a >> b;
	int mul = a/__gcd(a, b+1); // A | mul * (B+1)

	for(int i=1; i<=n; i++){
		int x, y; cin >> x >> y;
		int len = y-x+1;

		int all = len/b;
		if(all >= mul) ans = mul*b;
		else {
			ans = all * b + len%b;
		}
	}
	cout << ans << '\n';
}

• Subtask 1: 0 / 10
• Subtask 2: 5 / 5
• Subtask 3: 0 / 5
• Subtask 4: 0 / 5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 20
• Subtask 7: 0 / 20
• Subtask 8: 0 / 30